Music-winding roll for perforated music-sheets.



No. 897,383. PATENTED SEPT; 1, 1908.

G. E. MACK. MUSIC WINDING ROLL FOR PERFORATBD MUSIC SHEETS.

APPLIOATION FILED JULY 17, 1905.

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Perforated Music-Sheets,

GEORGE E. MACK, OF DETROIT, MICHIGAN,

DETROIT, MICHIGAN, A CO MUSIC-WINDING ROLL FOR PERFORATED MUSIC-SHEETS.

Application filed July 17', 1905.

To all whom it may concern:

Be it known that I, GEORGE E. MACK, residing at Detroit, in the countyof Wayne and State of Michigan, a citizen of the United States, haveinvented certain new and useful Improvements in Music d inding Rolls forof which the following is a specification, reference being had thereinto the accompanying drawings.

The invention relates to mechanism for winding and re-winding musicsheets for automatic piano players and similar instruments, and moreparticularly to the construction of the music winding roll.

The invention consists in certain novel features of construction ashereinafter set forth and claimed.

In the drawings, Figure 1 is a sectional front elevation of the musicwinding roll; Fig. 2 is a cross section on line a:9c of Fig. 1.

A is the music winding roll which is provided at its opposite ends withthe usual flanges B for guiding the music sheet.

C is a drive shaft for the roll which has a drive connection with thelatter, preferably comprising the pinion D engaging with a gear wheel Esecured to one end of the roll. It is usual in the construction ofwinding rolls to provide a hook near the center of the roll for engagingwith a ring or eye at the end of the perforated music sheet and form ingthe means of adjustment for the latter to the roll. Whenever a new sheetof music is placed in the instrument, it is necessary to first engagethis hook with the ring, and if the roll is not in the proper positionfor such engagement, it must be revolved by hand the necessary amount.Thus it is sometimes necessary to revolve it through the greater part ofa revolution to effect the engagement of the hook with the ring.

It is one of the objects of the present invention to avoid the necessityof rotating the roll more than a small fraction of a revolution and tothis end a plurality of hooks are attached to the roll and are spacedaround the same so that one of the hooks is always near the position forengagement.

As shown, the central portion of the roll A is reduced in diameter at F,and surrounding this is a band G of sheet metal.

H are a series of hooks projecting from the band G and preferably formedintegral therewith, being struck up as shown. The band G is secured bysuitable means such as the Specification of Letters Patent.

' the socket.

Patented Sept. 1, 1908.

Serial No. 270,033.

screws I at its opposite ends which abut against each other. the hooksII are spaced equidistant from each other and thus one of the hooks isalways near to a position for engagement with the ring on the musicsheet.

Another feature of the invention is the manner of detachably journalingthe roll A in the frame or tracker box. For this purpose, socketbearings J are centrally inserted in opposite ends of the roll, theinner end of the socket being tapered to a point.

K is a stationary pin at one end of the frame or tracker box which isslightly smaller than the socket J and is tapered to a point at aslightly sharper angle than that of L is a pin at the opposite end ofthe frame which is provided. with a similar tapering point, but this pinslidably engages a bushing M inv the side N of the frame.

0 is a spring secured to the frame N and bearing against the outer endof the pin L which is also tapered as at a.

The construction described permits of quickly inserting or removing theroll A, it being merely necessary to draw the pin L outward against thetension of the spring O until it clears the socket member J, after whichthe roll may be readily drawn out of engagement with the pin K. Inaddition to forming ameans for quickly attaching or removing the roll,the pin and socket bearings as shown prevent danger of binding of theroll which might otherwise occur, due to the shrinking or swelling ofthe wooden supporting frame N. Thus, if the bearing were formed by pinsprojecting from the ends of the roll and engaging parallel bearings, anychange in the frame would throw these bearings out of alinement andcause the pins to bind. Such an effect is however impossible with thepresent construction and the pins L and K may be thrown considerably outof alinement without binding the roll, this being for the reason thatthere is sufficient clearance between the pins and the sides of thesockets to permit of an angular arrangement. Additional advantages ofthis construction are, first, that by providing a plurality of hookswhich are arranged diametrically opposite to each other on the musicwinding roll, the latter may be kept in perfect balance, whereas with asingle projecting hook the balance is destroyed. Another feature 1s thatthe socket bearings J are set ASSIGNOR TO FARRAND ORGAN COMPANY, OF

RPORATION OF MICHIGAN.

With this construction,

in the rough block from which the roll A is turned and thus are arrangedexactly in the line of the axis; furthermore, as the socket member Jprojects beyond the end of the roll, it may be used for exactlycentering the gear wheel E which is centrally apertured to fit thesocket. Thus, this gear Wheel may be quickly attached to the roll 4 andWill run perfectly true.

What I claim as my invention is 1. A Winding roll for music sheetsprovided with a plurality of music engaging hooks spaced about thecircumference thereof.

2. A winding roll for music sheets provided with a plurality of musicengaging hooks arranged in circumferential series and spaced equidistantfrom each other.

3. The combination with a music Winding roll, of a band centrallyencircling the same and a plurality of music-engaging hooks se cured tosaid band.

4. The combination with a music winding roll, of a metallic bandencircling said roll, and a plurality of music-engaging hooks struck outfrom said band.

5. A winding roll for music sheets provided with a plurality of musicengaging hooks arranged at different points about the roll and so as toexactly counter-balance each other and preserve the balance of the roll.

In testimony whereof I aflix my signature in presence of two Witnesses.

GEORGE E. MACK.

Vitnesses:

JAMES P. BARRY, EDWARD D. AULT.

